Fig. 1

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Galactocentric distance, R, as a function of distance from the Galactic plane, Z, in the direction of the North Galactic Pole (NGP), Z = 90°, for 124 618 stars selected from GALAH DR4. Dashed lines show the Solar values R = 8 kpc and Z = 20.8 pc, while the yellow star shows the location of the Sun. The bin size is 0.05 × 0.05 kpc.
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